The golden ratio (hereinafter referred to as "golden ratio") is about 0.6 18: 1. The golden ratio refers to dividing the whole into two parts, and the ratio of the larger part to the whole is equal to the ratio of the smaller part to the larger part, and the ratio is about 0.6 18. This ratio is recognized as the most aesthetic ratio.

The calculation formula of this ratio is (√5- 1)/2 (the root sign is five minus one divided by two), and the result is actually an irrational number, but we only need to take the first three digits of this irrational number, so the approximate value of this ratio is 0.6 18. The shape designed according to this ratio will be very beautiful, so it is called the golden ratio.

main feature

The golden ratio is a mathematical proportional relationship. The golden ratio is strictly proportional, artistic and harmonious, and contains rich aesthetic value. Generally, it is 0.6 18 in application, just as pi is 3. 14 in application.

The aspect ratio of a golden rectangle is the golden ratio. In other words, the long side of a rectangle is 1.6 18 times of the short side. Golden ratio and golden rectangle can bring beauty and pleasure to the picture. It can be found in many works of art and nature, such as the Pasa Shennong Temple in Athens, Greece, and Leonardo da Vinci's Vitruvian Man.